Defensive publication

ABSTRACT

PLASTICIZER BLENDS FOR BONDING AT ROOM TEMPERATURE TOBACCO SMOKE FILTER RODS FORMED OF CELLULOSE ACETATE FILAMENTS AND COMPRISING ABOUT 42 TO ABOUT 70* BY WEIGHT OF (TRIACETIN) GLYCEROL TRIACETATE AND ABOUT 30 TO ABOUT 60% BY WEIGHT OF A LOW-VAPOR PRESSURE ESTER SELECTED FROM THE GROUP COMPRISING TRIETHYL CITRATE, ACETYLTRIETHYLCITRATE, TRIMETHYLOL PROPANE TRIACETATE, 2,2,4-TRIMETHYL, 1,3-PENTANEDIOL DIACETOACETATE AND 1,3-BUTANEDIOL DIACETOACETATE, THE AMOUNT OF BLEND APPLIED TO THE CELLULOSE ACETATE FILAMENTS COMPRISES ABOUT 6 TO ABOUT 20% OF THE WEIGHT OF THE CELLULOSE ACETATE FILAMENTS, AND PREFERABLY ABOUT 6 TO ABOUT 11% OF THE WEIGHT OF THE CELLULOSE ACETATE FILAMENTS. THE INVENTION IS ALSO DIRECTED TO A TOBACCO SMOKE FILTER ROD AS BONDED WITH SUCH PLASTICIZER BLENDS.

DEFENSIVE PUBLICATIQN UNITED STATES PATENT AND TRADEMARK orrrcn Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and arearranged chronologically. Theheading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applicationshave not been examined as to the merits of alleged invention. The Patent and Trademark OlIice makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED NOVEMBER 4, 197 5 l0 (JG. 6

T940,006 PLASTICIZER BLENDS FOR TOBACCO SMOKE FILTER RODS AND FILTER RODS BONDED BY SUCH BLENDS Gerald P. Morie, 2317 Brierclitf Road, and (:ephas H. Sloan, Rte. 5, both of Kingsport, Tenn. 37660 Filed May 31, 1974, Ser. No. 475,342 Int. Cl. A24!) 15/02 U.S. Cl. 131-267 No Drawing. 6 Pages Specification Plasticizer blends for bonding at room temperature tobacco smoke filter rods formed of cellulose acetate filaments and comprising about 40 to about 70% by weight of (triacetin) glycerol triacetate and about 30 to about 60% by weight of a low-vapor pressure ester selected from the group comprising triethyl citrate, acetyltriethylcitrate, trimethylol propane triacetate, 2,2,4-trimethyl, l,3-pentanediol diacetoacetate and 1,3-butanediol diacetoacetate. The amount of blend applied to the cellulose acetate filaments comprises about 6 to about 20% of the weight of the cellulose acetate filaments, and preferably about 6 to about 11% of the weight of the cellulose acetate filaments. The invention is also directed to a tobacco smoke filter rod as bonded with such plasticizer blends. 

